Bushing-protector for use in pitching lager-beer kegs.



Patented Sept. ll, I900. F. KUELSCH &. J. P. KRAMER.

(Application filed Oct. 4, 1899.!

INVENTORS I ilk ATTORNEY.

BUSHING PROTECTOR FOR USE IN PITGHING LAGER BEER KEGS.

(No Model.)

WITNESSES:

UNTTnD STATES PATENT OFFICE.

FRANK KOELSGH AND JOSEPH P. KRAMER, OF SCRANTON, PENNSYLVANIA.

BUSHING-PROTECTOR FOR USE IN PITCHING LAGER-BEER KEGS.

SPECIFICATION forming part of Letters Patent No. 657,702, datedSeptember 11, 1900.

Application filed October 4, 1899. Serial No. 732,534:- (No model.)

T0 at whom it ntay concern.-

Be it known that we, FRANK KOELSCH and JOSEPH P. KRAMER, citizens of theUnited States,and residents of Scrantonfln the county of Lackawanna andState of Pennsylvania, have invented certain new and useful Improvementsin Bushing-Protectors for Use in Pitching Lager-Beer Kegs; and we dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

Figure 1 of the drawings is a representation of a side elevation of abarrel-bushing with our invention applied thereto, the barrel beingshown in section. Fig. 2 is a central vertical section through abarrel-bushing having our invention applied thereto. Fig. 3 is a similarview showing the bushing-protector in side elevation and rocked to oneside previoustoits removal. Fig. 4 illustrates a form of protectorhaving a funnel-shaped extension.

This invention has relation to a protector for barrel-bushings, andespecially for the bushings of lager-beer kegs while in process of beingpitched.

In pitching a keg upon the inside the bushing thereof when smeared withthe hot pitch is expanded, and on contracting when cold becomes loose inits seat and is, moreover, difficult to clean, as the pitch adheresstrongly thereto.

It is the object of our invention to provide means easily applied to andremoved from the bushing, whereby the bushing will be kept from contactwith the pitch in pitching a keg, and whereby it will not become undulyheated.

WVith this object in view the invention consists in the novelconstruction and combination of parts, all as hereinafter described, andpointed out in the appended claims.

Referring to the accompanying drawings, the letter A designates thebushing of a keg, having the usual tapered orifice, and B designates ourbushing-protector, also of tapered form, having the flange B at itslarger extremity and which is designed to be struck into the bushingwith a mallet to fit closely therein. The protector is provided aboutmidway of its length with an external annular groove 1) of substantialwidth, which is for the purpose of making the device at that point moresusceptible of expansion and contraction and to allow it to give morereadily when driven into the bushing.

The inner end portion of the device has a taper slightly greater thanthe taper of the orifice of the bushing in order that the protect-orwhen in place will contact therewith at a circumferential line 0 nearits inner end or at the inner shoulder formed by the annular groove 1)and at no other points. The said shoulder is rounded, as shown at 0Above said groove 1) the device is of a diameter a little less than theorifice of the bushing and of similar taper thereto. The device is madesufficiently long to leave a space between its flange and the bushingwhen struck home therein, wherein a chisel or the like may be insertedto extract same when no longer required.

It will be observed that while the device is securely seated in thebushing when in place it may be rocked therein from side to side and soextracted without trouble or delay.

The protector may be made of brass, malleable iron, or other suitablematerial.

Fig. 4 shows a form of protector having a funnel-shaped extension fromits outer end.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-- 1. As a new article of manufacture, thebushing-protector adapted to fit in a bushing, and having pivotalcontacting points therewith, whereby it may be rocked from side to sidetherein, and readily removed, substantially as specified.

2. The combination with a barrel-bushing, of a bushing-protector adaptedto fit therein, and having pivotal contacting points therewith, wherebyit may be rocked from side to side therein, and readily removed,substantially as specified.

3. The combination with a barrel-bushing, of a bushing-protector, havingits inner end portion of greater taper than said bushing,

and 0? less diameter than said bushing above a neter than the orifice ofsaid bushing, sub- 10 said inner tapered portion, substantially asstantially as specified.

specified. In testimony whereof we affix our signa- 4. The combinationwith a barrel-bushing, tures in preseneeof two Witnesses.

of a bushing-protector, having the inner ta- FRANK KOELSCH,

pered portion of greater taper than said bnsh- JOSEPH P. KRAMER.

ing and provided with a rounded shoulder Witnesses:

at its inner extremity, the central annular CHAS. H. COOPER,

groove and the outer end portion of less di- T. J. GALLAGHER.

